文献类型：专利

英文题名：Preparation of magnetic perfluorosulfonic acid resin/silica cobalt iron oxide solid acid catalyst by dissolving perfluorosulfonic acid resin in alcohol-water solution, coprecipitating, and dispersing in ethyl orthosilicate

作者：ZENG Y;WEI Y;XU Z;LIU X;XU H

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN103055942-A

申请日：2011-10-19

公开日：2013-04-24

语种：英文

收录：DERWENT

摘要：NOVELTY - Preparation of magnetic perfluorosulfonic acid resin/silica cobalt iron oxide (SiO2-Co0.5Fe2.5O4) solid acid catalyst involves dissolving perfluorosulfonic acid resin in alcohol-water solution to obtain perfluorinated sulfonic acid resin solution; coprecipitating to prepare magnetic nanomaterial; dispersing magnetic nanomaterial in ethyl orthosilicate with ultrasonic wave, or adding ethyl orthosilicate into perfluorinated sulfonic resin solution while stirring; adjusting pH, aging; drying; grinding to obtain powder catalyst; acidifying powder; washing; drying; and pulverizing. USE - Preparation of magnetic perfluorosulfonic acid resin/silica cobalt iron oxide (SiO2-Co0.5Fe2.5O4) solid acid catalyst. ADVANTAGE - The method has simple synthesis, and provides product with strong acidity and magnetism and easy to separate under external magnetic field. DETAILED DESCRIPTION - Preparation of magnetic perfluorosulfonic acid resin/silica cobalt iron oxide (SiO2-Co0.5Fe2.5O4) solid acid catalyst comprises dissolving perfluorosulfonic acid resin in alcohol-water solution to obtain perfluorinated sulfonic acid resin solution; coprecipitating to prepare magnetic nanomaterial; dispersing magnetic nanomaterial in ethyl orthosilicate with ultrasonic wave, or adding ethyl orthosilicate into perfluorinated sulfonic resin solution while stirring; adjusting pH, aging; drying; grinding to obtain powder catalyst; acidifying powder; washing; drying; and pulverizing to obtain magnetic perfluorosulfonic acid resin/SiO2-Co0.5Fe2.5O4 solid acid catalyst.